One title really doesn't matter ...
The N64 had Mario 64, The Legend of Zelda: OoT and Goldeneye 64 three titles which defined genres and are considered some of the most important games ever created; the Gamecube had Resident Evil 4, Super Smash Bros. Melee and Metroid Prime all of which were considered some of the best games in the generation; even the XBox had the Halo series which is one of the best 'system selling' series I have ever seen.
The Playstation and PS2 dominated because they had boatloads of crap released for them ...
- Want a Spongebob game for your Nephew, odds are it is on the PS2
- Want a awful game show tie-in product, odds are it is on the PS2
- Want an unusual puzzle game, odds are it is on the PS2
- Want a dating simulation, odds are it is on the PS2
... Metal Gear, Gran Turismo, Final Fantasy, and Dragon Quest enabled the PS2 to sell 30+ Million consoles; the awful games no one will ever thinks of as being important allowed the PS2 to break 120+ Million consoles sold.
